Display screen or portion thereof with icon



FIG. 1 is a front view of the icon of FIG. 2, showing the icon enlarged and separate for clarity of illustration; and,

FIG. 2 is a front view of a display screen or portion thereof with icon, showing my new design.

The dash-dash broken lines in FIG. 2 depict environmental subject matter and form no part of the claimed design.

The dot-dash broken lines in the figures represent an unclaimed boundary line and form no part of the claimed design.

The dot-dot-dash broken line showing of the display screen is for environmental purposes only and forms no part of the claimed design. 

CLAIM I claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 